ECU Needs Replacing - Advice

[shottashad]

Car is totally dead & being told ECU needs replacing (which is what I came to the conclusion to). Quoted £700.

What I can't understand is, google search shows a Seat Leon mk3 ECU for around £50-£100, surely im looking at the wrong thing right?
Why is it so much & do you have to recode the ECU when it's been replaced?

How this happened was my dad messed about with the ignition coils on the car whilst it was running & broke one whilst trying to pull it out, which caused a short circuit & cut off the car.
Car is dead, a turn of the ignition does nothing & engine & EPC light just flash & the fans turn on & dont shut off.
Spent a week trying to see if there was a fuse or something that had burnt because surely there must've been some protection to the ECU, but apparently not. Took it to auto electrician & theyre saying its a ECU replacement job :/

Sad times, any relevant threads/vids or advice would be appreciated during these troublesome times.

I tried scanning the car & these codes came up (attached)

 

[ViperSlider]

Price quoted is likely for new, you're googling used.

 

[cairus]

Firstly, please read it out with something reputable, vcds, obd11 vcp or Odis yourself... if your scan is to be believed, the drive canbus has probably failed. because control units that are connected to the drive canbus are affected. This is managed by the STG 19, called the gateway or diagnostic interface. The immobilizer is stored in the engine control unit, so if you really do replace it, the dealer has to do it, unless you know someone privately with the right tools... I would personally replace the STG 19. Be careful, there is component protection on it, but the vehicle can be started and driven, it's just that all options and comfort features are not working. Of course, you should also have the dealer remove the component protection, have an SVM comparison done and have the functions activated.